html, body {overflow: hidden}
#large-header {background: rgba(2,11,20,.6);position: relative;top: 0;left: 0;right: 0;bottom: 0;width: 100%;height: 100%;z-index: 1;}
.signin-ele-bx {padding: 0;z-index: 9;position: inherit}
.signin-slogan {display: none}
.signin-ele {width: 350px;position: absolute;left: 50%;top:50%;-webkit-transform: translate3d(-50%,-50%,0);transform: translate3d(-50%,-50%,0);-ms-transform: translate(-50%,-50%);}
.lt-ie9 .signin-ele {margin-left: -175px;margin-top: -220px;}
.lt-ie10 .input-group-addon{float: left\9;}
.lt-ie10.input-group .form-control{width: calc(100% - 40px)\9;height: 40px\9;}
.signin-form-bx .input-group .form-control{line-height: 1.5\9;}